By the way check your ballistics charts and you will find the 180gr bullet is the optimal bullet for the 30-06. While the 200gr bullet may hit harder, it does not have the range of the 180. The 200, 220, and 250gr bullets were developed for the .300 WM, not the 30-06.
I'd have to respectfully disagree with that. I do agree that the 180gr bullet is a great balance of power power and flat ballistics, but when trying to see what bullets to use for long range out of my 30-06 I looked up the 168gr matchking, 190gr matchking, and 200gr matchking. All three of these bullets at 2600 fps (that seems to be the speed they shoot best in my rifle so that's what I used) have different distances where the amount of energy drops below 1000lbs. I picked 1000 pounds because it's a nice round number not because I think it means anything.
168gr MatchKing @ 2600 FPS
@ 550 yards still has 1000lbs of energy
190gr MatchKing @ 2600 FPS
@ 700 yards still has 1000lbs of energy
200gr GameKing @ 2600 FPS
@ 800 yards still has 1000lbs of energy
When I was looking into this I was hoping to find some bullets that hit harder downrange and would hold up better in the wind. I was kind of surprised at what I found. Any of those bullets can get pushed faster or slower, but I used 2600fps because that seems to be the sweet spot for my barrel, but every rifle is different.